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Secunia Research 24/11/2005

- SpeedProject Products ZIP/UUE File Extraction Buffer Overflow -

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Table of Contents

Affected Software.......................................... ..........1
Severity.......................................... ...................2
Description of Vulnerability..................................... ....3
Solution.......................................... ...................4
Time Table............................................. ..............5
Credits........................................... ...................6
References........................................ ...................7
About Secunia........................................... .............8
Verification...................................... ...................9

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1) Affected Software

* ZipStar 5.0 Build 4285
* Squeez 5.0 Build 4285
* SpeedCommander 11.0 Build 4430
* SpeedCommander 10.51 Build 4430

Prior versions may also be affected.

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2) Severity

Rating: Moderately Critical
Impact: System access
Where: Remote

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3) Description of Vulnerability

Secunia Research has discovered two vulnerabilities in various
SpeedProject products, which can be exploited by malicious people to
compromise a user's system.

1) A boundary error exists in CxZIP60.dll and CxZIP60u.dll due to the
unsafe use of the "lstrcat()" function when constructing the full
pathname of a file that is extracted from a ZIP archive. This can be
exploited to cause a stack-based buffer overflow and allows arbitrary
code execution when a specially crafted archive is extracted.

The vulnerability has been confirmed in the following products.
* ZipStar 5.0 Build 4285
* Squeez 5.0 Build 4285
* SpeedCommander 11.0 Build 4430
* SpeedCommander 10.51 Build 4430

2) A boundary error exists in CxUux60.dll and CxUux60u.dll due to
the unsafe use of the "lstrcpy()" function when constructing the
full pathname of the file that is decoded from a UUE file. This can
be exploited to cause a stack-based buffer overflow and allows
arbitrary code execution when a specially crafted UUE file is
decoded.

The vulnerability has been confirmed in the following products.
* Squeez 5.0 Build 4285
* SpeedCommander 11.0 Build 4430
* SpeedCommander 10.51 Build 4430

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4) Solution

Update to the fixed versions.

SpeedCommander 10:
Update to version 10.52 Build 4450.

SpeedCommander 11:
Update to version 11.01 Build 4450.

Squeez 5.0:
Update to Squeez 5.10 Build 4460.

ZipStar 5.0:
Update to ZipStar 5.10 Build 4460.

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5) Time Table

03/11/2005 - Initial vendor notification.
03/11/2005 - Initial vendor reply.
17/11/2005 - Vendor released fixed versions.
24/11/2005 - Public disclosure.

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6) Credits

Discovered by Tan Chew Keong, Secunia Research.

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7) References

No other references.

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8) About Secunia

Secunia collects, validates, assesses, and writes advisories regarding
all the latest software vulnerabilities disclosed to the public. These
advisories are gathered in a publicly available database at the
Secunia website:

http://secunia.com/

Secunia offers services to our customers enabling them to receive all
relevant vulnerability information to their specific system
configuration.

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

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9) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2005-60/advisory/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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